Acetylene-gas generator.



No. 738,191. PATBNTBDSEPT. 8, 1903.

J. T. D. HEATON. AGETYLENB GAS GENERATOR.

APPLICATION FILED JUNE 12. 1902.

N0 MODEL Inventor.

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tus; andI declare the following to be a full,

No; 738,19i.

UNITED STATES rammed September is, lets.

PAT NT OFFICE.

JOHN T. I). IIEATON, OF AUBURN, MAINE, ASSIGNOR OF ONE-HALF TO JOSEPH HEATON, OF AUBURN, MAINE.

S GENERATOR.

SPECIFICATION forming part of Letters Patent No. 738,191, dated September 8, 1903.

Application filed June 12, 1902. Serial No. 111,360. N0 m To (LZZ whom, it may concern:

Be it known that I, J OHN T. D. HnA'roN, a citizen of Great Britain, and a resident of Auburn, in the county of Androscoggin and State of Maine, have made a certain new and useful Invention in Acetylene-Gas Apparaclear, and exact description of the same, such as will enable others skilled in the art to which it appertains to make and use the invention, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

Figure l is a central vertical section through my apparatus. Fig. 2 is an end elevation of the generator.

The invention relates to acetylene gas generators; and it consists in the construction and novel combinations of parts, as hereinafter set forth.

The object of the invention is to improve the generator of the character described in the Letters Patent No. 687,469, dated November 26, 1001, by means of automatic devices to cut off the water in recharging, and thereby prevent accidental leakage of the gas into the room or place where the generator is located.

In the patented construction a valve operated by hand is provided to cut off the feed of water into the carbid-chamber in recharging, and sometimes this valve is not properly closed because of carelessness or other fault, allowing the water to continue to flow into the chamber, and when the carbid-pans are overloaded residuum is apt to fall down therefrom upon the bottom of the chamber and close up the central exit-opening in said bottom, thereby preventing the formation of the water seal of the vent-pipes and allowing the gas to escape into the room.

In the accompanying drawings, illustrating the invention, the letter A designates the water-tank of the generator, and B a gas-bell; C, the outer tank of the generator; D, the carbid-chamber, E, a waterseal cap for the generator, and F a strap to bind down said water-seal cap. The carbid-chamber is provided with a series of carbid-pans, one above another, as indicated at a.

L represents the drip-chamber or condensation-chamber of the water-tank of the receiver.

M is the pipe which takes the gas from the receiver to the burners.

The air-vent pipe I), from the bottom of the carbid-chamber, is provided with a screwstopper 0, and from this pipe, which extends below said bottom, extend upward the outlet vent-pipe d and the inlet vent-pipe e. The latter pipe is provided with a valve-opening f to allow the water to pass down through the pipe into the pipe Z) and thence into the carbid-chamber.

On the pipe 6 is a sleeve-valve g, which is designed when raised to close the opening f. This sleeve-valve is provided with a bent arm h, which extends under the bell B and over the edge of the tank A and is provided with a projecting end or bearing to be engaged by a slide-rod 70, connected to the tank-wall. The lower end of this slide'rod 7a is also pr0 vided with a projection or bearing to engage a cam Z on the screw-stopper c of the pipe I). A chain is usually employed to connect the screw-stopper to the end of the strap F, such chain serving to hold the strap in place and to prevent the screw-plug from becoming lost or mislaid. The water from the receiver-tank passes into the generator-tank, and the valve g is adjusted to allow the water to pass through the opening f into the pipe 9, whence it passes into the bottom of the carbid-chamber and rising to the carbid-pans wets the carbid and causes the generation of the acetylene gas.

In charging or recharging the screw stopper or plug 0 of the pipe I) must be removed to draw off the water. In doing this the stopper is turned and its cam or projection Z raises the slide-rod 7e, and thereby raises the arm 7L of the valve and moves said valve to position over the opening f, closing the same. \Vater is prevented from entering the carbid-chamber, therefore, in an automatic manner by the operation of unscrewing the stopper. \Vhen the carbid-chamber is charged, the screw stopper is replaced and the valve opened by pulling down the slide-rod and the valve-arm.

Having described this invention, what I claim, and desire to secure by Letters Patent, 1s

1. In a gas-generator, the combination with the carbid-chamber, its vertical valved waterinlet pipe within the generator, its water-exit pipe, and the air-vent pipe, said inlet, exit, and air-vent pipes having a mutual communication with each other, of an intermediate device to close the valve-opening 0f the water inlet pipe when the water-exit pipe is opened, substantially as specified. v

2. In a gas-generator, the combination with the carbid-chamber, its waterinlet and its water-exit pipes, of the screw-stopper of said exit-pipe, and the slide-valve of said inletpipe, and means whereby the valve of said inlet-pipe is closed when the stopper of said exit-pipe is opened, substantially as specified.

3. In a gas-generator, the combination with the carbid-chamber, its Water-inlet and its water-exit pipes, of the cam-stopper of said exit-pipe, a slide-rod, and the valve having an arm to engage said slide-rod, sustantially as specified.

In testimony whereof I affiX my signature \ll1 pllQSG11C6 of two witnesses.

JOHN T. D. HEATON.

Vitnesses:

JosEPH HEATON, TASOUS ATWooD. 

